Chapter 22 Astronomy

Earth’s orbit is best described as which shape?

• wide oval

• straight line

• perfect circle

• nearly circular

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What holds Earth in its orbit?

• the lunar cycle

• Earth’s rotation

• the tilt of Earth on its axis

• the gravitational pull of the Sun

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Seasons change because

• Earth rotates on its axis.

• Earth’s distance from the Sun changes.

• the amount of energy from the Sun changes.

• Earth is titled on its axis as it revolves around the Sun.

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seen from the part of Earth in the Moon’s umbra

• total solar eclipse

• total lunar eclipse

• equinox

• solstice

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occurs when the Moon passes through Earth’s umbra

• total solar eclipse

• total lunar eclipse

• equinox

• solstice

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day on which Earth’s axis is not leaning toward or away from the Sun

• total solar eclipse

• total lunar eclipse

• equinox

• solstice

day on which Earth’s rotation axis is the most toward or away from the Sun

• total solar eclipse

• total lunar eclipse

• equinox

• solstice

from new moon to first quarter

• waning phases

• waxing phases

• tides

• lunar cycle

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from full moon to last quarter

• waning phases

• waxing phases

• tides

• lunar cycle

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a result of the Moon’s rotation

• waning phases

• waxing phases

• tides

• lunar cycle

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